Oven



J. W. WHITTINGHILL.

OVEN- APPLICATION FILED AUG-21h I917. REN EWED APR- 17, 1920. 1,341,829.Patented June 1, 1920-.

3 IIIIIA I 22 i A96 INVENTOR. James W Whiflgghill.

JAMES W. WHITTINGHILL, 0F LOS ANGELES, CALIFORNIA.

OVEN.

Specification of Letters Patent.

Patented June 1, 192a.

Application filed August 29, 1917, Serial N0. 188.767. Renewed April 17,1920. Serial No. 374,778.

To all whom it may concern Be it known that I, JAMES 1V. lVHI'r-TIXGHILL, a citizen of the United States, residing at Los Angeles, inthe county of Los Angeles and State of California, have 1nvented anewand useful Oven, of which the following is a specification.

This invention relates to an oven construction for cook stoves, rangesand the like and particularly pertains to the shelf and runway portionsthereof.

In bake ovens of domestic cook stoves in which the wallsof the oven areformed with sheet metal fitted with horizontal guideways on which ovenshelves are mounted, the shelves frequently bind and are difiicult tomove on their guide-ways by reason of the expansion of the metal whenthe oven is heated, and by reason of warping of the shelves orguide-ways, and which difliculty is especially pronounced when theshelves are heavily loaded.

It is the object of this invention to provide a construction wherebybinding 'of the shelves is obviated and their movement easily effectedso that the shelf may be readily withdrawn to facilitate the inspectionof things being cooked in the oven.

Another object is to provide means whereby the-shelf will be preventedfrom tipping when partly withdrawn from the oven, so

i that utensils thereon will not be accidentally to the ordinary ovenshelf now commonly in use to equip same with roller bearings.

Fig. 3 is a detail sectional elevation as seen on the line 33 of Fig. 2showing the manner of mounting the vertical supporting rollers.

Fig. 4 is a detail sectional elevation as seen on the. line 4.4: of Fig.2 showing the manner of mounting the horizontal rollers.

Fig. 5 is a. detail in perspective illustrating the roller carryingplate as forming the end portion of an oven shelf.

In the embodiment of the invention shown in Figs. 1 and 2, I provide anattachment adapted to be applied to oven shelves now generally in use toequip same with roller bearings. and which attachment comprises a rollercarrier 7 formed with a top plate 8 and a binding plate 9. The plates 8and 9 are adapted to be positioned on the lower and upper sides of-ashelf 10 to extend along the edges thereof, as shown in Fig. 1, andsecured in place by stove bolts 11 passed through registeringperforations 12 in the plates 8 and 9, the bolts passing between thebars of the shelf and clamping the ends of the latter between theplates. The plate 8 is formed with a downwardly'extending end fiange 13which is formed with out-out portions 14 and 15 at suitable intervalsapart through which horizontally disposed rollers 16 and 17 extend, therollers being carried on pivot pins 18 formed by rivets which engage theplate 8 and position the rollers 16 and 17 close to the under side ofthe latter. The rollers 16 and 17 are designed to project beyond theedge of the shelf so as to contact the side walls of the oven andprevent the shelf from binding in event it is disposedin an angularposition in the oven.

The rollers 17 are arranged contiguous to the rear ends of the plate soas to act on the oven side walls. throughout the entire range ofmovement of the shelf. The rollers 16 cooperatingwith the rollers 17 arespaced from the front end of the plate so as to contact the oven wallswhen the shelf is partly withdrawn.

Mounted on the flange 13 to extend therebeneath is a series of rollers19, 20 and 21 arranged with the rollers 19 and 21 adjacent to andforward of the rollers 16 and 17. These rollers are carried on pivotpins formed by rivets 22 mounted on the flange 13 as shown in Fig. 3,and are adapted to traverse horizontal flanges or guide-ways 23 mountedon the side walls 24 of an oven, and form a roller support for the ovenshelf.

The rear end of the plate 8 is turned downwardly to form a flange 25having a cut-away portion or slot forming a finger 26 adapted to projectbeneath the flange 23 to engage the latter and prevent tipping of theshelf when it is partly withdrawn from the oven.

In the form of the inventionshown in Fig. 5 the plate 8 forms the endrail of the oven shelf; the bars 10 bein ,permanently factured and soldas equipped with rollers,

even when heavily loaded.

whereas the form shown in Figs. 1 and 2 constitutes an article "ofmanufacture in itself adapted to be sold to and applied b persons havingstoves not equipped with non-binding shelves.

- The operation of the invention is appar; ent from the foregoing, itbeing readily seen that by supporting the shelfgon the side rollers andfitting it with the end rollers .and the track engaging fingers, theshelf may be easily moved in and out of the'oven While I have secificaliy-illustrahed and described the pre erred embodiments of myinvention,it is manifest that various changes may be made in details ofconstruction without departing from the spirit and scope of the appendedclaims.

1. Ina bake oven construction, the com-' bination of oven side walls,horizontal guide guide flanges.

.ings therein, horizontal rollers pivoted diflan es thereon, a shelf,end rails on said I shel comprising, a top-plate, a downwardly 3.0

extending longitudinal side flange on the outer edge of said top-platehaving openmgs therein, horizontal rollers. pivoted directly on saidtop-plate projecting through the openings in said side flange adapted tocontact the. oven side walls, and vertical rollers mounted on andprojecting below the side flanges and adapted to 'travel' on the 2. In abake oven construction, the combination of oven side walls, horizontalguide flangds thereon, a shelf, end rails on said i shelf comprising atop plate, a downwardly extending longitudinal side flange on the outeredge of the top plate having Openrectly on the under side of the topplate projecting through the openings in said side flange and adapted tocontact the oven side walls, vertical rollers pivoted directly on theinside of the side flanges and adapted to travel on the guide flanges,and fingers on the rear ends of the side rails projecting beneaththeguide. flanges, substantially as described.

JAMES W. WHITTINGHILL.

